IronLog vs Proof
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IronLog
This app helps lifters quickly log gym sets, track progress with charts and PRs, and manage workout history. It offers features like rest timers, Apple Watch integration, and optional advanced analytics for a streamlined training experience.
- Fast set logging
- Workout templates
- Personal record detection
- Rest timers and notifications
- Progress charts
- Apple Watch logging
- Apple Health integration
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Iron Log is a fast, focused workout tracker for lifters who want to log sets without fighting the app. Start a workout, tap through sets, watch your rest timer, and finish with a clean summary. Iron Log keeps your training history, templates, PRs, charts, and Apple Watch logging in one place. Built for real gym flow: - Log weight, reps, notes, warmups, and completed sets quickly - Reuse workout templates that remember your previous weights - Detect personal records as you train - Use rest timers, Live Activities, and notifications between sets - Review workout history by date - Track progress charts for max weight, volume, and estimated strength - Log body measurements alongside training - Import and export CSV files - Start and log workouts from Apple Watch - Save completed workouts to Apple Health when you choose Your data stays yours. Iron Log stores workout data on your device and can sync through your private iCloud. There is no social feed and no account required. Optional Iron Log Pro features include advanced progress charts, full workout history beyond the last 90 days, CSV import, unlimited custom exercises, training schedule, and alternate app icons. Iron Log is for strength training, bodybuilding, powerlifting, and anyone who wants a clean lifting log that gets out of the way.
Proof
This app is a straightforward training log designed to help you track your weightlifting progress. It focuses on recording your sets and reps, automatically loading previous session data to help you beat your personal bests. Your training data is stored locally on your device for privacy.
- Log lifts with pre-loaded previous weights and reps
- One-tap set completion
- Adjustable numbers with thumb scrubbing
- Integrated rest timer
- Weekly training summary
- Consistency calendar and per-lift history
- Local data storage for privacy
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Proof is a lifting log for people who want a record, not a coach. Most fitness apps tell you what to do. Proof measures what you did, every set, and shows you whether you beat last time. WHAT IT DOES - Log a set in two taps. Weight, reps, done. - Every lift keeps its full history. Nothing is capped or hidden. - Personal records are detected automatically and sealed the moment you hit them. - A body map shows which muscles you have trained hard and which you have skipped. - Patterns surface the honest stuff: your best day, your steadiest day, where you stall. - A rest timer that runs in the Dynamic Island and on the Lock Screen. WHAT IT DOES NOT DO - No subscription. Pay once, keep it forever. - No account. Nothing to sign up for. - No cloud. Your training stays on your phone. - No ads, no feed, no streak guilt. FREE AND PAID Log as much as you want for free, and the last 30 days are always open. A one-time unlock opens your full history, the body map over time, and every record back to day one. Built by one person who lifts and wanted an honest instrument, not another coach. Log your lifts. Beat last time.
Screenshots
Verdict
The clearest difference is monetization model: Proof at free against IronLog's freemium. Proof also leads on iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. IronLog sells 1 one-off in-app purchase and Proof sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for IronLog against 5.0 for Proof. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
| Parameter | IronLog | Proof |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 3 — better |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Quinten Sinclair | Serafin Vazquez |
Customer experience
IronLog
Proof
In-app purchases
IronLog
- IronLog Pro$9.99
Proof
- Full Instrument$7.99








